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Asked: 2026-05-28T16:05:03+00:00

I need to create an install file that will check the registry for the

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I need to create an install file that will check the registry for the version of another software. Currently I’m commenting and un-commenting lines of code for separate installs. How can I turn the below into an conditional?

<!--<Property Id="ACADREG" Value="ACAD-A001:409" /> Autocad 2012--> 
<Property Id="ACADREG" Value="ACAD-A004:409" /> <!--Autocad Arch 2012-->

I also need to obtain which version that is for later in the install.

    <Property Id="ACADROAMDIR">
    <RegistrySearch Id="ROAMROOTDIR" Root="HKCU" Type="raw" Key="Software\Autodesk\AutoCAD\[ACADVER]\[ACADREG]" Name="RoamableRootFolder" />
    </Property>


    <Property Id="ACADDIR">
    <RegistrySearch Id="AcadLocRegistry" Type="raw" Root="HKLM" Key="SOFTWARE\Autodesk\AutoCAD\[ACADVER]\[ACADREG]" Name="AcadLocation" />
    </Property>

Is there a way wiX can set [ACADREG] by reading the registry instead of me setting it like I did above?

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1 Answer

  1. Editorial Team

    You can use a Preprocessor condition:

    <?define AutocadSku = "ACAD2012" ?>

<?if $(var.AutocadSku) = "ACAD2012" ?>
  <Property Id="ACADREG" Value="ACAD-A001:409" />
<?else?>
  <Property Id="ACADREG" Value="ACAD-A004:409" />
<?endif ?>

    Or even better, the best practice is searching for both, so later on you could conditionally check for each property’s existence or content:

    <Property Id="ACADROAMROOTDIR">
  <RegistrySearch Id="ROAMROOTDIR" Root="HKCU" Type="raw" Key="Software\Autodesk\AutoCAD\R18.2\ACAD-A001:409" Name="RoamableRootFolder" />
</Property>
<Property Id="ACADROAMARCHROOTDIR">
  <RegistrySearch Id="ARCHROAMROOTDIR" Root="HKCU" Type="raw" Key="Software\Autodesk\AutoCAD\R18.2\ACAD-A004:409" Name="RoamableRootFolder" />
</Property>
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